EP 0419169 B1 19950719 - Magneto-optical recording medium.
Title (en)
Magneto-optical recording medium.
Title (de)
Magneto-optisches Aufzeichnungsmedium.
Title (fr)
Milieu d'enregistrement magnéto-optique.
Publication
Application
Priority
JP 24242289 A 19890920
Abstract (en)
[origin: EP0419169A2] A magneto-optical recording medium is provided which has high magneto-optic effect even under a short-wavelength light, high anisotropy in the direction perpendicular to the film surface, and permits high-density recording, the medium having a first magnetic layer laminated onto a second magnetic layer, the first magnetic layer being a rare-earth-transition-metal amorphous film with mainly a light rare-earth element as rare-earth element, the light rare-earth element being at least one element selected from an element group consisting of Nd and Pr, and the second magnetic layer being a rare-earth-transition-metal amorphous film with at least one element selected from an element group consisting of Tb and Dy as rare-earth element.
IPC 1-7
IPC 8 full level
G11B 11/10 (2006.01); G11B 11/105 (2006.01)
CPC (source: EP KR US)
G11B 11/10 (2013.01 - KR); G11B 11/10589 (2013.01 - EP US); Y10S 428/90 (2013.01 - EP US); Y10T 428/265 (2015.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0419169 A2 19910327; EP 0419169 A3 19921216; EP 0419169 B1 19950719; CA 2017300 A1 19910320; CA 2017300 C 19940517; CN 1019242 B 19921125; CN 1050456 A 19910403; DE 69020992 D1 19950824; DE 69020992 T2 19960404; GB 9014399 D0 19900822; HK 24096 A 19960216; JP 2646398 B2 19970827; JP H03108144 A 19910508; KR 910006940 A 19910430; KR 930009224 B1 19930924; MY 106198 A 19950331; US 5030512 A 19910709
DOCDB simple family (application)
EP 90310126 A 19900917; CA 2017300 A 19900522; CN 90107062 A 19900820; DE 69020992 T 19900917; GB 9014399 A 19900628; HK 24096 A 19960208; JP 24242289 A 19890920; KR 900012789 A 19900820; MY PI19901394 A 19900820; US 55197390 A 19900712